US6276528B1 - Tubular core assembly with interlocking end members and system for use thereof to wind a continuous web - Google Patents
Tubular core assembly with interlocking end members and system for use thereof to wind a continuous web Download PDFInfo
- Publication number
- US6276528B1 US6276528B1 US09/412,398 US41239899A US6276528B1 US 6276528 B1 US6276528 B1 US 6276528B1 US 41239899 A US41239899 A US 41239899A US 6276528 B1 US6276528 B1 US 6276528B1
- Authority
- US
- United States
- Prior art keywords
- tubular core
- core body
- radially extending
- annular insert
- engagement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65H—HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES
- B65H75/00—Storing webs, tapes, or filamentary material, e.g. on reels
- B65H75/02—Cores, formers, supports, or holders for coiled, wound, or folded material, e.g. reels, spindles, bobbins, cop tubes, cans, mandrels or chucks
- B65H75/18—Constructional details
- B65H75/185—End caps, plugs or adapters
- B65H75/187—Reinforcing end caps
Definitions
- the present invention relates to a tubular core assembly of the type used for winding continuous webs such as, for example, roll carpet or other forms of web material such as plastic film, newsprint and the like. More particularly, the invention relates to a tubular core assembly having mechanically interlocked end members, or inserts, facilitate the retention of a protective overwrap material used to protect the material wound upon a core.
- U.S. Pat. No. 5,393,010 discloses a tubular core assembly for winding or unwinding sheet material, including inside diameter-reducing annular insert members at opposed ends of the tubular core.
- Each annular insert member is mechanically interlocked to the tubular core by at least one axial groove in the bodywall of the tubular core, which is arranged to engage an axially extending tongue member on an annular insert member.
- U.S. Pat. No. 5,340,050 also discloses a similar tubular core assembly, wherein inside diameter-reducing annular insert members are mechanically locked to the tubular core by at least one radially extending pin.
- U.S. Pat. No. 4,875,636 discloses a tubular core assembly that includes end caps, or plugs, arranged to be press-fit into the core to prevent damage to the end portions of the core.
- the core plugs include an outside lip area to aid in removal of the core plugs from the tubular core.
- the present invention provides a tubular core assembly and system.
- the system includes a rigid, open ended, tubular core body, a pair of annular insert members, an over-wrap, an installation tool and a removing tool.
- the tubular core assembly includes the tubular core body, which has grip strips arranged in a pattern on its outer surface, and at least one circumferential locking area adjacent each end of the tubular core body, and a pair of annular insert members each configured to be received within respective opposed ends of the tubular core body.
- Each insert member includes a plurality of radially extending members integrally formed on an external peripheral surface of the insert member and configured to be received in one or more circumferential locking areas of the tubular core body. Upon engagement of an insert member with an end of the tubular core body, one or more of the radially extending members become releasably interlocked with the locking area, and one or more other radially extending members become frictionally engaged with an inner surface of the tubular core body.
- the grip strips may be arranged in any pattern, and preferably in either as straight strips oriented parallel to the long dimension of the tubular core body, or in a helical pattern, generally wrapping around the tubular core body.
- the grip strips may be made of any material which satisfies the function of frictionally engaging the first wrap of a continuous web adapted to be rolled about the tubular core body.
- the tubular core assembly further includes an over-wrap, such as, for example, a plastic sheet material, arranged to encase a roll of sheet material wrapped around the tubular core body so that opposing ends of the over-warp are each releasably retained in a pinching engagement between a respective annular insert member and the inside wall of the tubular core body.
- an over-wrap such as, for example, a plastic sheet material
- FIG. 1 is a schematic illustration of tubular core assembly 1 , according to the present invention.
- FIG. 2 is a schematic illustration of the manner in which the core assembly is formed, according to the present invention.
- FIG. 3 is a schematic illustration of the tubular core body including gripping strips arranged in a helical pattern, according to the present invention
- FIG. 3A is a schematic illustration of radially extending tongue members in the form of a knurled pattern according to the present invention
- FIG. 4 is a schematic cross-sectional view of the tubular core body including circumferential cooperative locking areas extending partially through the bodywall, according to the present invention
- FIG. 5 is a schematic illustration of an annular insert member according to the present invention.
- FIG. 6 is a schematic illustration of a radially extending tongue member according to the present invention.
- FIG. 7 is a schematic illustration of a radially extending tongue member in the form of spaced, circumferential segments according to the present invention.
- FIG. 8 is a schematic illustration of a radially extending tongue member in the form of a dimple according to the present invention.
- FIG. 9 is a schematic illustration of the annular insert member completely seated in one end of the tubular core body according to the present invention.
- FIG. 10 is a schematic illustration of one end of the tubular core assembly including an over-wrap according to the present invention.
- FIG. 11 is a cross-sectional schematic view of one end of tubular core assembly according to the present invention.
- FIG. 12 is a schematic illustration of the installation tool engaged in an annular end insert member according to the present invention.
- FIG. 13 is a schematic illustration of side and end views of the removing tool according to the present invention.
- FIG. 1 is a schematic illustration of tubular core assembly 1 , according to the present invention, showing an elongate hollow cylindrical member or tubular core body 10 and a pair of annular insert members 12 , 12 ′, each oriented to be received by opposing ends of tubular core assembly 1 .
- Tubular core body 10 can be made of any rigid material that can be configured with a slot having a profile that retains one of the annular insert members 12 , 12 ′, as described in more detail, below.
- tubular core body is 10 is made of polypropylene, but other materials can be used to form the core body such as, for example, plastic, recycled plastic, or similar materials, by molding or extrusion. Multiple layer tubular bodies formed by a conventional convolute wrapping process can also be used.
- FIG. 2 is a schematic illustration of the manner in which the core assembly is formed.
- a user holding an annular insert member 12 positions member 12 for assembly into one end of tubular core body 10 .
- Tubular core body 10 includes a bodywall 14 having an outer surface 16 , grip strips 18 arranged in a pattern on outer surface 16 , and at least one circumferential slot 20 adjacent to each end.
- Grip strips 18 may be arranged in any convenient pattern extending between opposing ends of the tubular core body 10 , so that sheet material, for example, a continuous carpet web, disposed in a first wrap around the tubular outer surface 16 frictionally engages the grip strips 18 .
- the first wrap is releasably retained on the core body 10 and successive wraps of the sheet material are wrapped about the core body 10 in a tightly rolled configuration.
- the pattern can be one of straight strips oriented parallel to the long dimension of the tubular core body, as shown in FIG. 2, or a helical pattern, with strips 22 arranged in a spaced relation to one another, as shown in FIG. 3 .
- the grip strips 18 and 22 are manufactured by any number of methods.
- grip strips 18 and 22 are made of synthetic or natural material and are applied to the outer surface of the tubular core body 10 by co-extrusion, spray, or hand application.
- grip strips 18 and 22 are co-extruded and made of thermal plastic rubber. Any pattern of grip strips 18 and 22 is suitable and various materials may be used which satisfy the function of frictionally engaging the first wrap of a continuous web adapted to be rolled about the tubular core body 10 .
- grip strips 18 , 22 may be a knurled pattern, as schematically illustrated in FIG. 3 A.
- FIG. 3A schematically illustrates a portion of annular end insert member 12 , including exterior periphery 24 , which includes a knurled pattern 19 , i.e., a plurality of raised portions produced by a knurling process. Also shown, is a cross-sectional view of member 12 , revealing the raised portions of the periphery 24 .
- Tubular core body 10 may be configured to have one or more circumferential cooperative locking areas 20 integrally formed in the bodywall 14 adjacent to a respective end of body 10 .
- Circumferential cooperative locking areas 20 may have any convenient shape, and typically, but not by way of limitation, areas 20 are through slots substantially rectangular or oblong in shape, which are milled, punched, or cast into bodywall 14 .
- the shape and dimensions of slots 20 are determined by the dimensions, spacing, and profile of radially extending tongue members 26 .
- Circumferential cooperative locking areas 20 can extend from inner surface 21 to a depth partially through bodywall 14 so as to form a groove 20 ′ in the internal wall, as shown in FIG. 4, however, preferably, areas 20 have a depth extending completely through the bodywall to form spaced slots along the periphery of the core body 10 adjacent each end, as shown in FIG. 3 .
- FIG. 5 is a schematic illustration of annular insert member 12 , which is identical to end insert member 12 ′.
- Annular insert members 12 , 12 ′ have a cylindrical exterior periphery 24 with a diameter slightly less than that of core body 10 , and are configured to be received by respective ends of tubular core body 10 in coaxial relation therewith.
- Annular insert members 12 , 12 ′ preferably are resiliently deformable, thereby facilitating removal after assembly with an end of tubular core body 10 , thereby enabling repeated reuse without sustaining substantial damage resulting from the removal step.
- end insert members 12 , 12 ′ are made of polypropylene, but other materials can be used, including recycled plastic.
- At least one, and preferably a plurality, of radially extending tongue members 26 are integrally formed on cylindrical exterior periphery 24 , and are configured to interlock with circumferential locking areas or slots 20 when annular insert members 12 , 12 ′ are pressed into respective ends of tubular core body 10 .
- the interlocking engagement between annular insert member 12 and tubular core body 10 is releasable.
- FIG. 6 is a schematic illustration of a radially extending tongue member 26 extending from exterior periphery 24 .
- Tongue member 26 includes a cam surface 27 extending outward from periphery 24 and has a cam profile configured for camming engagement with an inner surface 21 of tubular core body 10 .
- Cam surface 27 is configured to provide assistance during insertion of annular insert member 12 into an end of tubular core body 10 .
- the cam profile includes a slope from an initial height H1 downward to the exterior periphery 24 of the annular insert member 12 .
- surface 28 is substantially perpendicular to exterior periphery 24 and is configured for locking engagement with an end wall 23 of one of the circumferential cooperative locking areas 20 , thereby preventing rotation of the annular insert member 12 with respect to the tubular core body 10 .
- surface 29 is also substantially perpendicular to exterior periphery 24 , so that upon assembly, surface 29 abuts a circumferential wall 25 of the locking area 20 .
- FIG. 7 schematically illustrates an alternative embodiment, in which radially extending tongue member 26 is in the form of spaced segments 26 ′ extending circumferentially along the peripheral surface 24 .
- Each segment 26 ′ has a cam profile configured for ease of assembly and for locking engagement with a respective circumferential locking area or slot 20 .
- each segment 26 ′ is keyed to one corresponding area or slot 20 and extends substantially along the entire length thereof.
- FIG. 8 schematically illustrates an alternative embodiment having a substantially half-spherical cam profile, as a dimple raised above exterior periphery 24 of annular insert member 12 .
- the radially extending tongue members 26 are preferably deformable to a certain extent to allow insertion of the end insert members 12 , 12 ′ into the core body 10 , regardless of the specific cam profile employed. Alternatively, end insert members 12 , 12 ′ are sufficiently deformable to allow this insertion. Sliding engagement of the radially extending tongue member 26 with inner surface 21 of tubular core body 10 causes certain tongue members 26 , or alternatively, portions of end insert member 12 , 12 ′, to temporarily deform until they seat and extend into the circumferential slots 20 , and return to, or nearly to, their original profile. Those tongue members 26 that are not aligned in a slot, press against inner surface 21 and frictionally retain the end insert member 12 , 12 ′ in position.
- annular insert member 12 further includes a leading end 30 and a trailing end 32 .
- Each end 30 and 32 has a face oriented perpendicular to cylindrical exterior periphery 24 of end insert member 12 .
- Trailing end 32 includes a lip 34 forming a circumferentially extending lip wall 36 oriented perpendicular to the exterior cylindrical periphery 24 .
- the lip wall 36 abuts the end of tubular core body 10 .
- Leading end 30 further includes a beveled surface 31 having a leading edge 33 with a diameter smaller than the diameter of the cylindrical core body 10 . Beveled surface 31 thus functions to assist in assembly of annular insert member 12 into an end of tubular core body 10 .
- FIG. 9 schematically illustrates the tubular core assembly 1 with an annular insert member 12 completely seated in one end of tubular core body 10 .
- groupings 37 and 37 ′ of radially tongue members 26 are shown engaged in, and protruding through respective circumferential slots 20 and 20 ′.
- FIG. 10 is a schematic illustration of one end of a tubular core assembly 1 , which according to the present invention, operates in conjunction with an over-wrap 36 adapted to protectively encase a roll of sheet material, such as a carpet web, carried on tubular core body 10 .
- Over-wrap 36 can be any paper, plastic, cloth or other sheet material having a general shape, preferably a rectangular shape, which allows it to be wrapped about the carpet web or other material carried on the core body 10 and to be protected from external elements and possible damage.
- Each of two opposing ends of over-wrap 36 is arranged to be releasably retained in a pinching engagement between a respective annular insert member 12 , 12 ′ and tubular core body 10 .
- the over-wrap 36 after being wrapped about the web material, is inserted into the free ends of core body 10 , after which an insert 12 , 12 ′ is pressed into the core body 10 , trapping or capturing the over-wrap 36 in place.
- FIG. 11 is a cross-sectional schematic view of one end of tubular core assembly 2 , showing tubular core body 10 and annular insert member 12 , including radially extending tongue members 26 and 26 ′ in seated, locking engagement with respective circumferential slot 20 or optionally, groove 20 ′.
- Over-wrap 36 is shown as captured between annular insert member 12 and tubular body member 12 .
- FIG. 11 also shows a cross-sectional view of sloping cam surface 27 of tongue member 26 in cooperation with circumferential slot 20 , when end insert member 12 is completely engaged in core body 10 .
- end insert member 12 is moved in the direction of arrow A, i.e., in an insertion direction into tubular core body 10 , sloping surface 27 contacts inner surface 21 of core body 10 first, thereby forcing resilient deformation of either the tongue member 26 or the end insert member 12 , so that end insert member 12 travels therein until completely engaged, as illustrated in FIG. 11 .
- tongue member 26 or end insert member 12 deforms depends on selection of materials and dimensions.
- FIG. 12 is a schematic illustration of a preferred embodiment of an installation tool 38 shown in engagement with annular insert member 12 .
- Tool 38 includes a first end 40 and second end 42 , an annular shoulder 44 disposed therebetween in coaxial relation therewith, and a handle portion 46 disposed between the annular shoulder 44 and the second end 42 .
- the first end 40 is configured to be operatively inserted in an annular insert member 12
- annular insert member 12 together with tool 38 are configured to be inserted into tubular core body 10 .
- Second end 42 is configured operatively to receive driving impacts, so that during use, the handle portion 46 is held so as to locate first end 40 inside an annular insert member 12 so that annular shoulder 44 abuts annular raised lip 34 of annular insert member 12 , so that when second end 42 is impacted, tool 38 drivingly seats annular insert member 12 into seated engagement with tubular core body 10 .
- FIG. 13 is a schematic illustration of a removing tool 48 , including a handle end 50 configured for gripping and an opposing chisel end 52 having a chisel-like profile.
- handle end 50 is gripped so as to orient chisel end 52 in a gap formed at the juncture between the outer lip 34 of annular insert member 12 and the inner surface of tubular core body 10 .
- the annular insert member 12 may be separated from tubular core body 10 .
- this separation occurs as a result of appropriate selection of materials and dimensions of the interlocked components, thereby enabling the annular insert member 12 to be resiliently deformed until completely disengaged from core body 10 .
- end insert member 12 Disengagement of end insert member 12 from core body 10 results after vertical wall 29 becomes fully disengaged from wall 25 of cooperating circumferential slot 20 .
- both end insert member 12 and core body 10 sustain little, or no, damage when separated, and can be repeatedly re-used, thereby providing cost savings.
Abstract
Description
Claims (20)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US09/412,398 US6276528B1 (en) | 1999-10-05 | 1999-10-05 | Tubular core assembly with interlocking end members and system for use thereof to wind a continuous web |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US09/412,398 US6276528B1 (en) | 1999-10-05 | 1999-10-05 | Tubular core assembly with interlocking end members and system for use thereof to wind a continuous web |
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US6276528B1 true US6276528B1 (en) | 2001-08-21 |
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US09/412,398 Expired - Fee Related US6276528B1 (en) | 1999-10-05 | 1999-10-05 | Tubular core assembly with interlocking end members and system for use thereof to wind a continuous web |
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Cited By (15)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6817471B2 (en) * | 2001-10-12 | 2004-11-16 | Brookstone Purchasing, Inc. | Display container |
US20050077421A1 (en) * | 2003-10-14 | 2005-04-14 | Hernandez Ismael A. | Yarn carrier |
US20050205648A1 (en) * | 2004-03-16 | 2005-09-22 | Erdie Jason S | Shipping container |
US6962595B1 (en) * | 2002-01-22 | 2005-11-08 | Cardica, Inc. | Integrated anastomosis system |
US20060196987A1 (en) * | 2004-09-28 | 2006-09-07 | Catalyst Paper Corporation | Disposable/reusable core adapters |
US20070033896A1 (en) * | 2005-08-12 | 2007-02-15 | Wasiukiewicz | Protective Guard for a Post, Pole or Leg of a Sign |
US20070131738A1 (en) * | 2004-03-16 | 2007-06-14 | Erdie End Caps, Llc | End caps for tubes and shipping containers formed therefrom |
US20100202908A1 (en) * | 2002-09-24 | 2010-08-12 | Continental Teves Ag & Co. Ohg | Supply device |
US20100251672A1 (en) * | 2009-04-01 | 2010-10-07 | Lincoln Global, Inc. | Electrode packaging to reduce handling damage |
US8012164B1 (en) | 2002-01-22 | 2011-09-06 | Cardica, Inc. | Method and apparatus for creating an opening in the wall of a tubular vessel |
US8029425B2 (en) * | 2009-07-07 | 2011-10-04 | Annovium Products, Llc | Portable multipurpose whole body exercise device |
US8181847B1 (en) * | 2009-11-16 | 2012-05-22 | Erdie End Caps, Llc | Shipping container provided with external locking clip |
US20170283128A1 (en) * | 2016-04-05 | 2017-10-05 | Ben Meconi | Poster tube closure |
CN108945610A (en) * | 2018-08-31 | 2018-12-07 | 李梅香 | A kind of bag taking fixed frame based on reeled freshness protection bags automatic open |
US20180370697A1 (en) * | 2017-06-23 | 2018-12-27 | Jared Koett | Closed container system |
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US8012164B1 (en) | 2002-01-22 | 2011-09-06 | Cardica, Inc. | Method and apparatus for creating an opening in the wall of a tubular vessel |
US8371833B2 (en) * | 2002-09-24 | 2013-02-12 | Continental Teves Ag & Co. Ohg | Supply device |
US20100202908A1 (en) * | 2002-09-24 | 2010-08-12 | Continental Teves Ag & Co. Ohg | Supply device |
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US20080061118A1 (en) * | 2004-03-16 | 2008-03-13 | Erdie End Caps, Llc | Shipping container |
US7581670B2 (en) | 2004-03-16 | 2009-09-01 | Erdie End Caps, Llc | Shipping container |
US7581671B2 (en) | 2004-03-16 | 2009-09-01 | Erdie End Caps, Llc | Shipping container |
US20050205649A1 (en) * | 2004-03-16 | 2005-09-22 | Erdie Jason S | Shipping container |
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US20060196987A1 (en) * | 2004-09-28 | 2006-09-07 | Catalyst Paper Corporation | Disposable/reusable core adapters |
US7481392B2 (en) * | 2004-09-28 | 2009-01-27 | Catalyst Paper Corporation | Disposable/reusable core adapters |
US20070033896A1 (en) * | 2005-08-12 | 2007-02-15 | Wasiukiewicz | Protective Guard for a Post, Pole or Leg of a Sign |
US7942266B2 (en) * | 2009-04-01 | 2011-05-17 | Lincoln Global, Inc. | Electrode packaging to reduce handling damage |
US20100251672A1 (en) * | 2009-04-01 | 2010-10-07 | Lincoln Global, Inc. | Electrode packaging to reduce handling damage |
US8029425B2 (en) * | 2009-07-07 | 2011-10-04 | Annovium Products, Llc | Portable multipurpose whole body exercise device |
US8715146B2 (en) | 2009-07-07 | 2014-05-06 | Balanced Body, Inc. | Portable multipurpose whole body exercise device |
USRE46803E1 (en) | 2009-07-07 | 2018-04-24 | Balanced Body, Inc. | Portable multipurpose whole body exercise device |
US8181847B1 (en) * | 2009-11-16 | 2012-05-22 | Erdie End Caps, Llc | Shipping container provided with external locking clip |
US20170283128A1 (en) * | 2016-04-05 | 2017-10-05 | Ben Meconi | Poster tube closure |
US20180370697A1 (en) * | 2017-06-23 | 2018-12-27 | Jared Koett | Closed container system |
CN108945610A (en) * | 2018-08-31 | 2018-12-07 | 李梅香 | A kind of bag taking fixed frame based on reeled freshness protection bags automatic open |
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Legal Events
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AS | Assignment |
Owner name: CONTINENTAL PRODUCTS, INC., GEORGIA Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:NOWOTNY, ROBERT;ELROD, RAY;REEL/FRAME:010416/0431 Effective date: 19991203 |
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